AD 96-19-12
Unsafe Condition
The spring on the interlock lever of the large cargo doors may become disconnected or the lever may become jammed in the 'activated' state, which could result in improperly locked cargo doors leading to door opening/separator during flight and subsequent rapid decompression and/or structural damage.
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Required Actions
Inspect and adjust the torque value of the attaching parts of the interlock mechanism, remove the spring from the interlock mechanism, and install a new microswitch bracket and new springs as per Fokker Service Bulletin SBF100-52-045.
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Compliance Time
Within 6 months after the effective date of this AD (October 23, 1996).
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Affected Aircraft
Fokker Model F28 Mark 0100 series airplanes listed in Fokker Service Bulletin SBF100-52-045, dated August 25, 1993.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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